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Finding the Fourth Proportional to 434,451.70, 651,922.26 and 339,415.48

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Solution

The fourth proportional to 434,451.70, 651,922.26 and 339,415.48 is: 509,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,451.70 : 651,922.26 = 339,415.48 : x
  2. Step 2: Convert to fraction form
    434,451.70/651,922.26 = 339,415.48/x
  3. Step 3: Cross multiply
    434,451.70x = 651,922.26 × 339,415.48
  4. Step 4: Simplify right side
    434,451.70x = 221,272,506,800.59
  5. Step 5: Solve for x
    x = 221,272,506,800.59/434,451.70
  6. Step 6: Final answer
    x = 509,314.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.